Motorcycle Maintenance Common Sense 35, Motorcycle Maintenance Common Sense

In addition to the common faults of the motorcycle, there is an important hardware fault in the oil circuit and gas circuit, which includes hardware damage, lubricating oil circuit, mixed gas compression ratio intake and exhaust, that is, cylinder barrel and piston, piston ring, valve, if the lubricating oil is missing or failing, and the lubricating oil channel is blocked or not smooth, it is easy to cause sticky cylinder pulling, as well as the rocker arm and valve wear on the cylinder head, carbon deposition and valve switch size is incorrect, at this time, even if the circuit is checked, fuel and air mixing and so on there is no problem, There will still be difficulties in starting or not starting, driving stalling, driving weakness and exhaust pipe discharge and other symptoms, the cause of the above failure belongs to the problem in the engine, it is also more serious personal difficulty to solve the problem, but if the purchased vehicle is qualified, no overhaul and no engine has been opened, as long as the engine lubricating oil is qualified and fully effective, the above parts will not have any problems, the above two parts are no problem, other problems are easy to solve, when it is difficult to start, check the circuit, oil circuit, Air filter, etc., should be able to start if there is no problem, circuit problems in case of magneto failure, other spark plugs, high-voltage packs, igniters, rectifiers can be replaced normally, if there is a fault.

When the lubricant is sufficiently effective and does not exceed the speed limit (the maximum speed specified by the vehicle), there will be no problems with the engine. Sticky cylinder pulling cylinder is the piston ring and cylinder barrel rubbing, air leakage, driving sticky cylinder will cause the vehicle to suddenly shut down, and then start difficult, after starting such as the feeling of a tractor, sticky cylinder pull cylinder serious can not start.

If there is a problem with the valve, it is also difficult to start or can not start, the driving is weak, the exhaust pipe is discharged or black smoke, of course, the exhaust pipe is not blocked, but the exhaust pipe is generally not blocked, if the start and driving failure, check the basic circuit, oil circuit, gas circuit is not a problem, you can suspect whether there is a problem with the above hardware. Pay attention to lubrication and maintenance, and the hardware can be used without problems, and the motorcycle can be used with confidence.

The grades of motor oil are classified according to the viscosity of the oil. But the 4t and 2t oils of motorcycles are not exactly divided by viscosity, it is divided by the stroke of the engine.

The lubrication method of two-stroke engine and four-stroke engine is different, 4t engine oil mainly lubricates the parts in the crankcase of four-stroke engine, and 2t engine oil enters the two-stroke engine to lubricate parts such as pistons and connecting rods. So 2T and 4T cannot be mixed.

Theoretically, it cannot be mixed, it is selected according to the model, temperature of different viscosity, but the general model effect is not obvious.

It varies from car to car, 15w is viscosity, as long as it is the same viscosity as the oil used in your car, it should be fine!

There are 2-stroke and 4-stroke oils.

Although the number of people using motorcycles has decreased with the beginning of the "motorcycle restriction order", there are also many people who use motorcycles in second- and third-tier cities, small counties, and small villages. After all, motorcycles have low cost and strong adaptability to road conditions. Because of these characteristics, they are also popular among Yanchai consumers.

But motorcycles also need regular maintenance in daily use, so as to ensure the normal operation of all components, so as to prolong their service life, so today we.

1.Fatigue. In terms of purchasing, don't buy tires with shallow or carved tread, and don't buy used tires.

It is best to buy new tires, because the material of the tires is rubber, which will age with the increase of age, and the performance of the tires will be greatly reduced. In addition, it is best not to brush the oil on the tire, because the oil has an affinity for rubber, which can easily lead to tire cracking and deterioration, which is easy to affect driving safety.

2.Car shells.

The environment today is no better than it used to be. Now the rain is basically acidic. Acid rain can easily cause a lot of corrosion to metals and plastics. If the motorcycle gets dirty or rains because of driving, you must remember to rinse the body with water, so that it can more or less resist some acid rain.

3.Machine lubricants.

It is important to change the oil for the first time after buying a new car. It is recommended to change the oil for the first time after 500 km, the second time after 1000 km, and then every 2000-3000 km (adjust appropriately according to the driving road conditions). Or once a year, two algorithms, whichever comes first.

If semi-synthetic oil is used, the change interval is generally 3000 km. It is possible to run to the limit of 4000 km, but in order to ensure the long life of the engine, it is recommended to change the oil at 3000 km, and inject the residual oil into the exhaust pipe about 100 ml each time the oil is changed. When buying engine oil, it is recommended to go to some regular stores or regular outlets to prevent the damage of counterfeit and shoddy engine oil.

4.Run-in phase.

During the run-in period, the engine speed should be changed frequently, all gears should be run-in, and the throttle should not be fixed at a certain speed for continuous operation, so that all parts can bear the load in a balanced manner, but not exceed the maximum specified speed.

5.Battery. When the motorcycle is just starting, it is best not to press the button for more than 5 seconds.

If it is not possible to start the model several times in a row, the oil supply system, ignition system and starting system should be checked. In addition, it should be noted that if the motorcycle is difficult to start, the headlights are dimmed, and the horn is not as loud as before, it means that the battery is not enough, remember to charge it in time.

6.Gasoline. When refueling, try to refuel with three barrels of local oil. In terms of gasoline selection, it is recommended to use No. 93 decarburized steam separation oil. Don't wait until the gasoline stops completely, as the engine stops running due to lack of oil, which is very harmful to the engine.

Millions of car purchase subsidies.

Motorcycle repair and maintenance tips are as follows:

First, the cylinder treatment method

Mix a little epoxy resin glue, gently apply and fill along the scratches of the cylinder barrel, place it for about 20 minutes, and then sprinkle a small layer of talcum powder, gently press it and scrape it with a piece of hard paper to form an arc that coincides with the cylinder barrel, and then place it for 4-6 hours. This method is only suitable for a slight number of scratches, if the situation is more serious, it is better to change the cylinder honestly.

2. Quickly clean up the carbon deposits in the cylinder.

Pull out the spark plug, spray the carburetor cleaner into the cylinder a few times through the spark plug hole, then tighten the spark plug, turn on the ignition switch and press the car for a few minutes to run the engine. This situation is only suitable for loose carbon deposits, if it is old ash, then forget it, slight carbon deposits, sometimes to the straight road to pull the highway, can also be solved.

3. Skillfully remove the cylinder head.

When encountering a motorcycle with the cylinder head combined too tightly, first remove the fixing screws, then drop a few drops of gasoline into the cylinder from the spark plug hole, reinstall the spark plugs, and then tie the cylinder block and cylinder head tightly with a rope, turn on the ignition switch and step on the starting lever, and easily remove the cylinder head when the engine deflagration sounds.

Fourth, the fuel tank is rust removed.

Use a small stick about 30 cm with a slight toughness, tie one end to the magnet and reach into the bottom of the fuel tank to row back and forth, stroke for a while to remove the rust adsorbed on the magnet, and repeat it several times. You can also fill the tank with water and add some pebbles, and shake it repeatedly for a while.

5. Fuel tank restoration.

After the fuel tank is deflated, clean the fuel tank first, then pour in 3/4 of the soybeans in the fuel tank capacity and fill it with water, and tighten the fuel tank cap. It should be noted that when the depression is restored, the soybeans should be poured out immediately, and they may not be poured out if they are late.

6. Rust removal of electroplating parts

Find a little ammonium acetate, put it in the same amount of clean water and heat it to 70 degrees, then soak it with a soft cloth and scrub the rusty place, and when the rust disappears completely, wipe it dry with a dry cloth.

7. Skillfully wash the motorcycle carburetor.

In the use of motorcycle carburetors, there are often sediment and water at the bottom of the carburetor, which affects the normal driving of the vehicle. Here's a way to clean the carburetor without dismantling it: first turn off the oil switch, loosen the oil drain screw at the bottom of the carburetor with a screwdriver, drain all the fuel in the carburetor, and then turn on the oil switch until the oil flows out.

Blow non-stop (or pump with a pump) into the exhaust pipe on the outer wall of the throttle. At this point, you will notice sand and water droplets ejecting from the drain pipe at the bottom of the carburetor. This is repeated several times to clean the sediment and water in the carburetor buoyon.

Then tighten the bottom screws and the motorcycle is ready to use normally.